I have a stock spartan running on 2 3s 4200mah lipos. I took it out today and the motor and the battery wires got really hot. I have been thinking of buying a metal water jacket and a rudder with dual pick up. Iv been looking at the ones offshore electrics sell. Has anyone used this brand and would this fix my heat problem. How can I cool my battery wires. Should I look at changing my prop size with a metal prop? Also is it worth putting a streamlined bullet nut on the prop shaft or is it just for looks. Does anyone have photos of the rudder with dual pick ups.